ETH options expiring 16SEP26, 1 days out, with the forward at $2,476. Open interest is $101M in calls and $49M in puts, put/call 0.49, and max pain is $2,520. At-the-money implied volatility is 51.7%. Where a strike is listed on both venues the cheaper ask and richer bid are visible side by side; the arb scanner flags any gap that exceeds fees. Strikes shown are within 60% of the forward. All ETH expiries.